Guide for axminster tube-frame supports



Dec. 10, 1929. A. P. PAINE GUIDE FOR AXMINSTER TUBE FRAME SUPPORTS Filed June 8, 192 8 5 set Patented Dec. 10, 1929- UNITD STATES ATENT OFFICE ARTHUR 1?. PAINE, OF WORCESTER, IASSACHUSETTS,.ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS GUIDE FOR AXMINSTEB TUBE-FRAME SUPPORTS Application filed June 8, 1928. Serial No. 283,983.

This invention relatesto improvements in means for supporting tube frames to fingers projecting from transporting chains of AX- minster looms and it is the general object 5 of the invention to provide auxiliary devices the effect of which is to position the fingers accurately to the end that the tube frames may be properly placed for correct operation in the loom. I

In my prior Patent No. 1,493,561 I have shown a transporting chain having a plurality of tongues or fingers extending therefrom to be interlocked with portions of the tube frame to hold the latter positively to the chains. During the tuft forming operation in an Axminster loom employing spools the tube frame is detached from the transporting chain and 'moves toward the fabric for the tuft forming operation, after .which the tube frame is moved upwardly and returned to the chain. It is highly desirable to have the fingers on the transporting chain so placed as to fit accurately into the pockets provided for them on the tube frames and it is accordingly an important object of my present in vention to provide guides for the chain fingers which will hold the latter in proper position to cooperate with the tube frame as the latter returns to the chains.

It is a further object of my present invention to provide a disk to be held to the sprocket of the pullover shaft through. the medium of a somewhat compressible substance to permit a slight adjustment of the disk relatively to the sprocket, said disk to engage and place the fingers on the chain and the slightly compressible material affording adjustment with the disk relatively to the finger.

It is a further object of my present invention to provide means for engaging opposite sides of the fingers of Axminster loom transporting chains to the .end that said fingers may beheld definitely in a predetermined position.

With these and other objects in view which will appear as the description proceeds, my

invention resides in the combination and arrangement of parts hereinafter described and forth in the claims.

be provided with the finger placing devices set forth herein and a description of the mechanisms located at one side of the loom will sufice for both.

Projecting from the transporting chain 12 are fingers 13 havin openings 14 each of which receives the head 15 of a plunger 16. Each end of each tube frame 17, of which but one is shown in the drawings, is provided with the spring frame may be provided with a spool support 18 on which is mounted a spool S. The tube frames will ordinarily embrace in their construction a member 19 held in place by screws .20 and having two vertical walls extending transversely of the tube frame, one of said walls 21' supporting the inner end of the the plunger 16 and the other wall 22 being spaced from the spool bearing 18 to define a pocket into which the lower end of the corresponding finger 13 may extend.

A clutch O has a lip 23 which extends under the tube frame and is provided also with a stud 24- from which projects inwardly a vertical fin 25 proportioned to enter the opening 14 to move the head 15 to the disengaging position shown in Fig. 2. A narrow slot 26 extending downwardly from the opening 14 is of sufficient width to permit free and uninterrupted passing of the fin 25.

Under normal conditions the plungers in the tube frames will be pushed outwardly by their springs so that the heads will extend through the corresponding fingers. When. the tube frame is to be released from a plunger 16 and each tube further be seen that chain, however, the clutches will be moved inwardly so that the fins will disengage the spring plungers from the fingers to permit the clutches to be moved downwardly by transferrer arms'fZ'Z, one of which is shown in 1. The matter thus far described is substantially the same as that set forth in my aforesaid patent andforms no part of my present invention.

In carrying my invention into effect I provide guides the purpose of which is to position the fingers 18 accurately so that they may enter the pocket between the wall 22 and the spool bearing 18 when a tube frame is being returned to the transporting chain. Accordingly, I secure to a fixed part of the loom frame 40 an arm ll which has a slot 42 through which extends a securing bolt 43. By means of the slot andbolt the arm 41 may be adjustable both angularly and vertically. As shown in Figs. 1 and 2 the arm extends close to the finger of the tube frame in position to be moved toward the fabric and acts to engage said finger should the same tend to move to improper position.

As shown more particularly in Fig. 3 I may provide the arm 41 with an inclined surface 70 which terminates in a rounded edge 71 located in sucha aosition as to determine the location of the inger of the tube frame in lowest position. Such a construction as set forth in Fig. 3 avoids undue wear and operates to position the fingers accurately with respect to inward motion at such times only as the tube frame is in position to be moved from the chain toward the cloth being In order to engage the opposite side of the finger I provide a disk which is held by means of bolts 61 to the sprocket 11. There is interposed between the sprocket and the dis 1 a leather packing 62 through which the bolts pass, said packing being normally slightly thicker than the finger 13 and being somewhat compressible to permit the distance between the disk and the fingers to be varied.

If desired the arm 41 and disk-60 maybe placed so as to be in direct engagement with the fingers as they move to tube frame deliverposition, but it is not essential that direct contact between the guides and the fingers be maintained at all times inasmuch as a slight clearance is permissible without allowing the fingers to become so much displaced as to fail to enter the pockets provided for them in the tube frames.

v From the foregoing vit will be seen that I have provided apair of guides for thechain fingers to engage the latter on-opposite sides, the guides acting to position the fingers accurately with respect to thetube frames. It will j I I have provided means for varying the position of each guide relatively to the fingers, the arm 41 being adjustthe chain, a tube frame having a poetic able angularly and vertically with respect to the fixed structure of the loom and the dish 60 being capable of assuming a plurality of positions within relatively small limits with respect to the sprocket. This latter adjustment is rendered possible by the strip or ring 62 of compressible material which may be leather, although I do not w to be limited "to the use of this material as any fairly resistant but somewhat yieldable material having the same general characteristics as leather will sufiice. 7

Having thus described my invention it will be seenthat changes and modi ications may be madetherein by those skilled the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In an 'Axminster loom, a transporting chain, a finger secured to and projecting from the chain,a tube frame having a pocket to receive the finger, means to move the transporting chain to carry the tube frame to de livery position, a guide secured to and moving with the means for the inside of the finger to prevent improper longitudinal movement of the finger toward the tube trams and assist 1n causmg proper registry of the finger relatively to the pocket of the tube frame, a

body of slightly compressible material interposed between the guide and the means, and securingmeans to hold the guide against said compressible material, the latter afforcin slight adjustment of the position of the guid relatively to the means. r

2. In an Amninster loom,a transpo chain, a finger securedto and proj eating co HQ 0, receive the finger, means to move the tr...ns porting chain to carry the tube frame to delivery position, a paircof guides one of which is for one side of the finger and occupies substantially the same plane throughout tne operation of the loom and the other guide for the opposite side of the finger to be held in a plurality of positions relatively to the fixed guide to vary the extent to which the guides may act-upon and determine the positienofthe finger, saidlother guide having an inclined surface along which the finger may move when misplaced as the means causes met1on of the transporting chaln and tube frame toward-delivery position, said surface being inchnedin a direction away from the plane of the first named guide with respect to the delivery position of the tube frame.

Intestimony whereof I have hereunto affixed my signature.

ARTHUR P. PAINE. 

